I don't know if this will help, but you can just try not letting her do the naughty things.

DS loves to clear his high chair tray of food. So we have a plate on his tray and a cup with a little water in and we just constantly re-fill the plate and cup from a second plate and cup on the table with us.

He loves to go behind the TV, so we block it off with a chair.

We praise a LOT for good behaviour (he either tells himself "noo noo noo" when he's naughy or calls himself a "goid goy" - I think that's good boy - now).

Just a FEW little things mean we don't have to tell him off and he's happier now because we are too.

HTH.